<template>
  <div class="box">
    <div class="title">
      <h4>芙蓉楼送辛渐</h4>
      <!-- 按钮位置 -->
      <span @click="isShow = !isShow" class="btn">
        {{ isShow ? '收起' : '展开' }}
      </span>
    </div>

    <!-- 切换显示隐藏的部分  -->
    <div v-show="isShow" class="container">
      <p>寒雨连江夜入吴,</p>
      <p>平明送客楚山孤。</p>
      <p>洛阳亲友如相问，</p>
      <p>一片冰心在玉壶。</p>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      isShow: true
    }
  }
}
</script>

<style scoped>
.box {
    box-shadow: 0 1px 4px 0 rgba(0, 0, 0, 0.5);
    border-radius: 4px;
    border: 1px solid #ebeef5;
    background-color: #fff;
    overflow: hidden;
    color: #303133;
    transition: .3s;
  }
.title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 20px;
}
.title h4 {
  line-height: 2;
  margin: 0;
}
.container {
  padding: 0 20px;
  border-top: 1px solid #ccc;
}
.btn {
  /* 鼠标改成手的形状 */
  cursor: pointer;
}
</style>